Riding helmet



FIG. 1 is a front elevational view of the riding helmet showing my newdesign;

FIG. 2 is a side elevational view taken from the left side of FIG. 1,the right side being a mirror image thereto;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for a riding helmet, substantially as shown.